CN106849927A - Two-wire system electronic switch and fire-fighting illumination control circuit - Google Patents

Two-wire system electronic switch and fire-fighting illumination control circuit Download PDF

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Publication number
CN106849927A
CN106849927A CN201710122780.0A CN201710122780A CN106849927A CN 106849927 A CN106849927 A CN 106849927A CN 201710122780 A CN201710122780 A CN 201710122780A CN 106849927 A CN106849927 A CN 106849927A
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China
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resistance
way
fire
electric current
fighting
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CN201710122780.0A
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CN106849927B8 (en
CN106849927B (en
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王立新
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Guangdong Yu Shun Electrical Co ltd
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Individual
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    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/722Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region with galvanic isolation between the control circuit and the output circuit
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A kind of two-wire system electronic switch and fire-fighting illumination control circuit, the two-wire system electronic switch include zero line, load outputs, fire-fighting end, the first two-way controlable electric current, the second two-way controlable electric current, triggers circuit, isolation circuit and conducting feedback end;Zero line is connected with the first end of the first two-way controlable electric current;Load outputs are connected with the second end of the first two-way controlable electric current and the first end of the second two-way controlable electric current respectively;Fire-fighting end is connected with the second end of the second two-way controlable electric current.The fire-fighting illumination control circuit includes load lighting circuit and above-mentioned two-wire system electronic switch.Above-mentioned two-wire system electronic switch and fire-fighting illumination control circuit, after major loop is powered off, spare electric power source for fire-fighting makes triggers circuit work and trigger the second two-way controlable electric current to turn on, now load illumination can normal work, fire-fighting illumination functions are capable of achieving, while meeting in the actually used middle demand that fire-fighting end is used as centralized Control end of industry.

Description

Two-wire system electronic switch and fire-fighting illumination control circuit
Technical field
The present invention relates to the technical field of electronic switch, more particularly to a kind of two-wire system electronic switch and with two line The fire-fighting illumination control circuit of electronic switch processed.
Background technology
National structural fire protection department must have one by force on the Lighting control electronic switch that skyscraper corridor is used The regulation of turn-on control end, it is necessary to the control end of all electronic switches and can connect together, is connected by a total fireman's switch Centralized Control on spare electric power source for fire-fighting is connected to use.This is forcibly turned on control end and can connect spare electric power source for fire-fighting, is special fire-fighting End.
When scene occur fire and other abnormal conditions when, it is necessary to concentrate light by electronic switch control load lamp when, After total fireman's switch connects stand-by power supply, all illuminating lamps of this corridor can be forced to light the same time, to facilitate people Member evacuates or does other use.For example after occurring because of fire or other abnormal conditions, mains failure or because considering live peace Full problem deliberately cuts off civil power, and the lighting lamp for fire service that stand-by power supply is provided only to corridor is used, to facilitate evacuating personnel.
Make as centralized Control end in the actually used middle control end namely special fire-fighting end that this is forcibly turned on of industry With, when need the electronic switch load lamp with centralized Control end is all lighted when, all centralized Control ends can be all connected Together, make all to be lighted by the load lamp that electronic switch is controlled with a switch centralized Control, to reach central controlled mesh 's.
However, this is forcibly turned on control end and can only be used as centralized Control end in industry is actually used, it is impossible to full Sufficient construction sector of China must have one to be forcibly turned on control on the Lighting control electronic switch that skyscraper corridor is used The regulation at end.Therefore, in the market using three-wire electronic switch or using controllable with unidirectional with rectification filtering unit The electronic switch of silicon control unit mode realizes control.
But, though the pertinent regulations of national construction sector can be realized and met to three-wire electronic switch, all kinds of corrupt practices creep in, Such as relay is being switched to fire-fighting illumination moment, and relay contact is easily damaged because load current is excessive;In addition, three lines Many one zero lines of cloth of electronic switch needs processed could realize that this implementation not only carrys out many difficulties to wiring tape, can also make Into unnecessary waste.
And though the electronic switch for having rectification filtering unit and one-way SCR control unit mode can partly realize fire-fighting control The problems such as making, but poor high-power and stability and high expensive cannot be realized in electronic switch, so can not expire completely Sufficient construction sector of China relevant regulations.
The content of the invention
Based on this, it is necessary to can only be used as centralized Control end for the existing control end that is forcibly turned on, it is impossible to meet Construction sector of China must have one to be forcibly turned on control end on the Lighting control electronic switch that skyscraper corridor is used Regulation technical problem, there is provided a kind of two-wire system electronic switch and fire-fighting illumination control circuit.
A technical scheme of the invention is:A kind of two-wire system electronic switch, the two-wire system electronic switch includes:For connecting Zero line, load outputs, the fire-fighting end for connecting spare electric power source for fire-fighting, the first two-way controlable electric current, of civil power live wire Two two-way controlable electric currents, triggers circuit, isolation circuit and conducting feedback end;The zero line and the described first two-way controlable electric current First end connection;The load outputs respectively with the second end of the described first two-way controlable electric current and it is described second it is two-way can Control the first end connection of circuit;The fire-fighting end is connected with the second end of the described second two-way controlable electric current;Described first is two-way The triggering end of controlable electric current is used to connect the triggers circuit of major loop, and city is accessed with the zero line and the load outputs After electricity, the first two-way controlable electric current is by signal triggering and conducting;The output end of the triggers circuit is two-way with described second can Control the triggering end connection of circuit;The output end of the isolation circuit is connected with the input of the triggers circuit;The conducting is anti- Feedback end is connected with the input of the isolation circuit, and the conducting feedback end is used to connect the control end of major loop, to receive master The bright light feedback signal in loop, the bright light feedback signal after the isolation circuit and the triggers circuit by controlling described second Two-way controlable electric current cut-off.
Wherein in one embodiment, the first two-way controlable electric current is bidirectional triode thyristor or connected with each other two One-way SCR, the second two-way controlable electric current is bidirectional triode thyristor or connected with each other two one-way SCRs.
Wherein in one embodiment, the isolation circuit includes isolation module and drive module, the isolation module Output end is connected with the input of the trigger module, and the input of the isolation module connects with the output end of the drive module Connect, the input of the drive module is connected with the conducting feedback end;The drive module is used for the major loop that will be received To the isolation module, the isolation module is isolated to be made bright light feedback signal back for the bright light feedback signal according to major loop The trigger module cut-off, and then end the described second two-way controlable electric current.
Wherein in one embodiment, the triggers circuit includes resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, rectifying full bridge D1, earth terminal GND1 and unidirectional controllable silicon S CR1;Wherein, earth terminal GND1 is used to be grounded;One end of resistance R1 Triggering end with the described first two-way controlable electric current is connected, and the other end of resistance R1 is connected by resistance R2 with the load outputs Connect;The first end of rectifying full bridge D1 is connected between resistance R1 and resistance R2, second end of rectifying full bridge D1 and one-way SCR The anode of SCR1 is connected and is connected with the control pole of unidirectional controllable silicon S CR1 by resistance R4, and the 3rd end of rectifying full bridge D1 passes through Resistance R3 is connected with the fire-fighting end;4th end of rectifying full bridge D1 is connected with earth terminal GND1;The moon of unidirectional controllable silicon S CR1 Pole is connected with earth terminal GND1, the control pole of unidirectional controllable silicon S CR1 be connected with earth terminal GND1 by resistance R5 and with it is described every Output end from module is connected.
Wherein in one embodiment, the isolation module includes photoelectrical coupler U2, and the drive module includes three poles Pipe Q1, resistance R6, resistance R7, earth terminal GND2 and power supply VCC1;Wherein, earth terminal GND2 is used to make the dc source of major loop It is grounded, and earth terminal GND1 isolates with earth terminal GND2;
First pin of photoelectrical coupler U2 connects power supply VCC1 by resistance R6, and the second pin of photoelectrical coupler U2 connects The colelctor electrode of triode Q1 is connect, the 3rd pin of photoelectrical coupler U2 is connected with earth terminal GND1, the 4th of photoelectrical coupler U2 the Pin is connected with the control pole of unidirectional controllable silicon S CR1;The base stage of triode Q1 is connected by resistance R7 with the conducting feedback end Connect, the emitter stage of triode Q1 is connected with earth terminal GND2.
Wherein in one embodiment, the triggers circuit includes resistance R11, resistance R12, resistance R13, resistance R14, electricity Resistance R15, resistance R16, rectifying full bridge D11, triode Q11, earth terminal GND11 and unidirectional controllable silicon S CR11;Wherein, earth terminal GND11 is used to be grounded;One end of resistance R11 is connected with the triggering end of the described first two-way controlable electric current, the other end of resistance R11 It is connected with the load outputs by resistance R12;The first end of rectifying full bridge D11 be connected to resistance R11 and resistance R12 it Between, second end of rectifying full bridge D11 is connected with the anode of unidirectional controllable silicon S CR11, and the 3rd end of rectifying full bridge D11 passes through resistance R13 is connected with the fire-fighting end;4th end of rectifying full bridge D11 is connected with earth terminal GND11;The moon of unidirectional controllable silicon S CR11 Pole is connected with earth terminal GND11, and the control pole of unidirectional controllable silicon S CR11 is connected by resistance R16 with earth terminal GND11;Three poles The colelctor electrode of pipe Q11 is connected and by resistance R15's and triode Q11 by resistance R14 with the anode of unidirectional controllable silicon S CR11 Base stage is connected, and the emitter stage of triode Q11 is connected with the control pole of unidirectional controllable silicon S CR11;The base stage of triode Q11 with it is described The output end connection of isolation module.
Wherein in one embodiment, the isolation module includes photoelectrical coupler U12, and the drive module includes three poles Pipe Q12, resistance R17, resistance R18, earth terminal GND12 and power supply VCC2;Wherein, earth terminal GND12 is used to be grounded, and ground connection End GND11 isolates with earth terminal GND12;First pin of photoelectrical coupler U12 connects power supply VCC2, photoelectricity by resistance R17 The colelctor electrode of the second pin connecting triode Q12 of coupler U12, the 3rd pin and the earth terminal GND11 of photoelectrical coupler U12 Connection, the 4th pin of photoelectrical coupler U12 is connected with the base stage of triode Q11;The base stage of triode Q12 passes through resistance R18 It is connected with the conducting feedback end, the emitter stage of triode Q12 is connected with earth terminal GND12.
Wherein in one embodiment, the two-wire system electronic switch also includes:Protection circuit, the zero line passes through institute Protection circuit is stated to be connected with the first end of the described first two-way controlable electric current.
Another technical scheme of the invention is:A kind of fire-fighting illumination control circuit, the fire-fighting illumination control circuit includes negative Lighting circuit and two-wire system electronic switch as described above are carried, wherein, the load outputs are by the load power for illumination Access civil power zero line in road.
Wherein in one embodiment, the load lighting circuit includes emergency light.
Above-mentioned two-wire system electronic switch and fire-fighting illumination control circuit, when zero line and load outputs meet load Zai Yu cities After electrical connection, major loop be supported on trigger signal after trigger work, the first two-way controlable electric current is triggered as normal conducting, together When major loop export the bright light feedback signal i.e. control module of major loop to conducting feedback end and gives one bright light in fire-fighting loop feedback Signal, bright light feedback signal, to the triggers circuit in fire-fighting loop, controls the second two-way controllable electric by after the isolation of isolation circuit End on road;After major loop is powered off, load outputs and fire-fighting are terminated into spare electric power source for fire-fighting, and spare electric power source for fire-fighting makes triggering electricity Road works and triggers the second two-way controlable electric current conducting, and now loading illumination can normal work, achievable fire-fighting illumination functions.Should Two-wire system electronic switch and fire-fighting illumination control circuit, meet national structural fire protection department and are used on skyscraper corridor Lighting control electronic switch must have a regulation for being forcibly turned on control end.So when needing to realize centralized Control, can Linked together so that all of fire-fighting end in skyscraper corridor is concentrated, made by the two-wire system with a switch centralized Control The load lamp of electronic switch control is all lighted, to reach central controlled purpose, so as to meet in industry is actually used The demand that fire-fighting end is used as centralized Control end.
Brief description of the drawings
Fig. 1 is the theory diagram of two-wire system electronic switch in one embodiment;
Fig. 2 is the theory diagram of two-wire system electronic switch in another embodiment;
Fig. 3 is the circuit theory schematic diagram of two-wire system electronic switch in one embodiment;
Fig. 4 is the circuit theory schematic diagram of two-wire system electronic switch in another embodiment;
Fig. 5 is the theory diagram of fire-fighting illumination control circuit in one embodiment;
Fig. 6 is wiring schematic diagram when two-wire system electronic switch is used as fire-fighting control in one embodiment;
Fig. 7 is wiring schematic diagram when two-wire system electronic switch is used as centralized Control in one embodiment.
Specific embodiment
To enable the above objects, features and advantages of the present invention more obvious understandable, below in conjunction with the accompanying drawings to the present invention Specific embodiment be described in detail.Elaborate many details in order to fully understand this hair in the following description It is bright.But the present invention can be implemented with being much different from other manner described here, and those skilled in the art can be not Similar improvement is done in the case of running counter to intension of the present invention, therefore the present invention is not limited by following public specific embodiment.
Fig. 1 is referred to, it is the theory diagram of two-wire system electronic switch 10 in one embodiment, namely two-wire system electronic cutting Close 10 principle schematic.Two-wire system electronic switch 10 includes zero line L, load outputs A, fire-fighting end C, first two-way controllable Circuit V1, the second two-way controlable electric current V2, triggers circuit T1, isolation circuit W1 and conducting feedback end S, conducting feedback end S namely Major loop bright light feedback signal reception end, the bright light feedback signal for receiving major loop.
Zero line L is used to connect civil power live wire, and load outputs A is used to connect load, and load outputs A connection loads The electrical zero line end N that enters the market is followed by, fire-fighting end C is used to connect spare electric power source for fire-fighting phase line.Wherein, zero line L and load outputs A connects (it is followed by into civil power through overload) when entering civil power, the major loop work being connected with zero line L and load outputs A.Fire-fighting end C with When load outputs A accesses spare electric power source for fire-fighting, the fire-fighting loop works being connected with fire-fighting end C and load outputs A.
The first end of zero line L controlable electric current V1s two-way with first is connected.Load outputs A is two-way with first controllable respectively The first end connection of second end of circuit V1 and the second two-way controlable electric current V2.Fire-fighting end C's and the second two-way controlable electric current V2 Second end connects.
The triggering end of the first two-way controlable electric current V1 is used to connect the triggers circuit of major loop, with zero line L and load After output terminals A accesses civil power, the first two-way controlable electric current V1 is having tactile by the two-way controlable electric current V1 of signal triggering and conducting, i.e., first Be triggered conducting during signalling.For example, the trigger signal refers to photosensor signal, sound control signal, infrared induction signal etc. by leading back The signal of road triggering.The triggering end of the output end of triggers circuit T1 controlable electric current V2 two-way with second is connected.Isolation circuit W1's Output end is connected with the input of triggers circuit T1.
Conducting feedback end S is connected with the input of isolation circuit W1, and conducting feedback end S is used to connect the control of major loop End, that is, turning on feedback end S is used to connect the part of major loop, to receive the bright light feedback signal of major loop, the bright light feedback letter Number by the second two-way controlable electric current V2 of control cut-offs after isolation circuit W1 and triggers circuit T1, it is to avoid main circuit voltage crosstalk, Influence the normal work of other products.
Above-mentioned two-wire system electronic switch 10, after zero line L and load outputs A meet load Zai Yu cities to be electrically connected, with fire The major loop work of line end L and load outputs A connections, the first two-way controlable electric current V1 is triggered as normal when having trigger signal and leads It is logical, the loaded work piece of major loop, while major loop to control section give conducting one major loop bright light feedback signal of feedback end, Bright light feedback signal by the two-way controlable electric current V2 of triggers circuit T1 controls second by after the isolation of isolation circuit W1, being ended;When After major loop power-off, load outputs A and fire-fighting end C accesses spare electric power source for fire-fighting, is connected with fire-fighting end C and load outputs A Fire-fighting loop works, spare electric power source for fire-fighting makes triggers circuit T1 work and trigger the second two-way controlable electric current V2 to turn on, now Load illumination can normal work, achievable fire-fighting illumination functions.Thus by anti-to one, fire-fighting loop bright light in major loop The work in feedback signal control fire-fighting loop, is better achieved fire emergency function.
The two-wire system electronic switch and fire-fighting illumination control circuit, meet national structural fire protection department on skyscraper The Lighting control electronic switch that corridor is used must have a regulation for being forcibly turned on control end.So when needs are realized concentrating During control, all of fire-fighting end C in skyscraper corridor can be concentrated and linked together, made with a switch centralized Control All lighted by the load lamp that the two-wire system electronic switch is controlled, to reach central controlled purpose, so as to meet in industry The actually used middle demand that fire-fighting end C is used as centralized Control end.
In one embodiment, the first two-way controlable electric current V1 is that bidirectional triode thyristor or connected with each other two are unidirectional controllable Silicon, the second two-way controlable electric current V2 is bidirectional triode thyristor or connected with each other two one-way SCRs.In the present embodiment, first Two-way controlable electric current V1 is bidirectional triode thyristor, and the second two-way controlable electric current V2 is bidirectional triode thyristor.It is appreciated that when unidirectional controllable When the power and trigger parameter of silicon meet the demand of circuit, two one-way SCRs connected with each other can also be realized two-way controllable Requirement.Certainly, in other embodiments, the first two-way controlable electric current V1 and the second two-way controlable electric current V2 can also have other Circuit structure, can specifically be chosen to install according to the demand of circuit.
When major loop connects 220VAC civil powers, the 220VAC voltage meetings after the controllable silicon V1 of major loop is triggered as normal conducting Go here and there in fire-fighting loop, make the controllable silicon V2 triggering and conductings in fire-fighting loop;Again loop string disappearing to other products is formed through C-terminal On anti-end, the normal work of other products can be influenceed.Fire-fighting loop and same is had influence on while work in order to avoid major loop The normal work of the other products on circuit, gives a major loop while controllable silicon V1 of major loop is triggered as normal conducting Bright light feeds back signal to fire-fighting loop, and the controllable silicon V2 in fire-fighting loop is ended after isolating through isolation circuit.For example, by monolithic Machine also gives one, fire-fighting loop control signal while to major loop V1 trigger signals, make fire-fighting loop V2 end or While major loop V1 is turned on, a signal is taken at the trigger signal of major loop at the triggers circuit of V2, end V2. In the present embodiment, refer to through isolation circuit isolation major loop and fire-fighting loop two ground connection between it is mutually isolated, i.e., each other not It is connected.After major loop is powered off, when fire-fighting loop connects spare electric power source for fire-fighting, backup power source voltage can be through touching in fire-fighting loop Power Generation Road triggers V2 controlled silicon conductings;After V2 controlled silicon conductings in fire-fighting loop, load lamp can normal work, achievable fire-fighting Illumination functions.
As described in Figure 2, in an embodiment, isolation circuit W1 includes isolation module 310 and drive module 320, isolation module 310 output end is connected with the input of trigger module 220, the input of isolation module 310 and the output end of drive module 320 Connection, the input of drive module 320 is connected with conducting feedback end S;Drive module 320 is used for the bright light of the major loop for receiving Feedback signal simultaneously feeds back to isolation module 310 to drive isolation module 310.Isolation module 310 is isolated for according to major loop Bright light feedback signal ends trigger module 220, and then ends the second two-way controlable electric current V2, so as to reach major loop and disappear The electrical isolation in anti-loop and closing voltage cross talk effect.
To further illustrate two-wire system electronic switch of the invention, with reference to Fig. 1, Fig. 2 and Fig. 3, in an embodiment, first pair It is bidirectional triode thyristor to controlable electric current V1, the second two-way controlable electric current V2 is bidirectional triode thyristor, and triggers circuit includes resistance R1, electricity Resistance R2, resistance R3, resistance R4, resistance R5, rectifying full bridge D1, earth terminal GND1 and unidirectional controllable silicon S CR1;Wherein, earth terminal GND1 is used to be grounded;The triggering end of one end of resistance R1 controlable electric current V1 two-way with first is connected, and the other end of resistance R1 passes through Resistance R2 is connected with load outputs A;The first end of rectifying full bridge D1 is connected between resistance R1 and resistance R2, rectifying full bridge D1 The second end be connected with the anode of unidirectional controllable silicon S CR1 and be connected with the control pole of unidirectional controllable silicon S CR1 by resistance R4, it is whole 3rd end of stream full-bridge D1 is connected by resistance R3 with fire-fighting end C;4th end of rectifying full bridge D1 is connected with earth terminal GND1;It is single It is connected with earth terminal GND1 to the negative electrode of controllable silicon SCR 1, the control pole of unidirectional controllable silicon S CR1 passes through resistance R5 and earth terminal GND1 is connected and is connected with the output end of isolation module 310.
Further, with reference to Fig. 1, Fig. 2 and Fig. 3, isolation module 310 includes photoelectrical coupler U2, and drive module 320 includes Triode Q1, resistance R6, resistance R7, earth terminal GND2 and power supply VCC1;Wherein, earth terminal GND2 is used to make the direct current of major loop Power ground, and earth terminal GND1 isolates with earth terminal GND2;First pin of photoelectrical coupler U2 connects electricity by resistance R6 Source VCC1, wherein, power supply VCC1 connects main circuit power VCC ends, the collection of the second pin connecting triode Q1 of photoelectrical coupler U2 Electrode, the 3rd pin of photoelectrical coupler U2 is connected with earth terminal GND1, and the 4th pin of photoelectrical coupler U2 is controllable with unidirectional The control pole connection of silicon SCR1;The base stage of triode Q1 is connected by resistance R7 with conducting feedback end S (namely the Part1 in figure) Connect, the emitter stage of triode Q1 is connected with earth terminal GND2.
As shown in figure 3, when major loop connects 220VAC civil powers, 220VAC voltages can pass through after the conducting of V1 normal works R2, R1, U1, R4, R5 make SCR triggering and conductings, then through influenceing other on R3, C-terminal formation loop string to the fire-fighting end of other products The loaded work piece of product.Other products on fire-fighting end and same circuit are had influence on while work in order to avoid major loop just Often work, by giving mono- feedback control signal of R7 in the trigger circuit of single-chip microcomputer or V1 while V1 normallies, leads Q1 Logical, U2 work makes SCR, V2 all end.After major loop is powered off, when fire-fighting loop connects spare electric power source for fire-fighting, backup power source voltage Can by R2, R1, R3 to U1 rectifications, then through R4, R5, make SCR triggering and conductings, then through R3, C-terminal formation loop make the trigger electrode of V2 Current potential is dragged down turns on V2;Passageway for fire apparatus after V2 conductings forms loop, and load lamp can normal work.
To further illustrate two-wire system electronic switch of the invention, with reference to Fig. 1, Fig. 2 and Fig. 4, in an embodiment, first pair It is bidirectional triode thyristor to controlable electric current V11, the second two-way controlable electric current V12 is bidirectional triode thyristor, and triggers circuit includes resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, rectifying full bridge D11, triode Q11, earth terminal GND11 And unidirectional controllable silicon S CR11;Wherein, earth terminal GND11 is used to be grounded.One end of resistance R11 and the first two-way controlable electric current V11 Triggering end connection, the other end of resistance R11 is connected by resistance R12 with load outputs A;The first end of rectifying full bridge D11 It is connected between resistance R11 and resistance R12, second end of rectifying full bridge D11 is connected with the anode of unidirectional controllable silicon S CR11, whole 3rd end of stream full-bridge D11 is connected by resistance R13 with fire-fighting end C;4th end of rectifying full bridge D11 connects with earth terminal GND11 Connect;The negative electrode of unidirectional controllable silicon S CR11 is connected with earth terminal GND11, and the control pole of unidirectional controllable silicon S CR11 passes through resistance R16 It is connected with earth terminal GND11;The colelctor electrode of triode Q11 is connected and led to by resistance R14 with the anode of unidirectional controllable silicon S CR11 Cross resistance R15 to be connected with the base stage of triode Q11, the emitter stage of triode Q11 connects with the control pole of unidirectional controllable silicon S CR11 Connect;The base stage of triode Q11 is connected with the output end of isolation module 310.
Further, with reference to Fig. 1, Fig. 2 and Fig. 4, isolation module 310 includes photoelectrical coupler U12, and drive module 320 is wrapped Include triode Q12, resistance R17, resistance R18, earth terminal GND12 and power supply VCC2;Wherein, earth terminal GND12 is used to be grounded, And earth terminal GND11 isolates with earth terminal GND12;First pin of photoelectrical coupler U12 connects power supply by resistance R17 VCC2, power supply VCC2 connect main circuit power VCC ends, the colelctor electrode of the second pin connecting triode Q12 of photoelectrical coupler U12, 3rd pin of photoelectrical coupler U12 is connected with earth terminal GND11, and the 4th pin of photoelectrical coupler U12 is with triode Q11's Base stage is connected;The base stage of triode Q12 is connected, triode by resistance R18 with conducting feedback end S (namely the Part2 in figure) The emitter stage of Q12 is connected with earth terminal GND12.
As shown in figure 4, when major loop connects 220VAC civil powers, 220VAC voltages can pass through after the conducting of V1 normal works R2, R1, D1, R4, R5, R6 turn on Q1, and trigger SCR conductings, then form loop string to the fire-fighting of other products through R3, C-terminal The loaded work piece of other products is influenceed on end.Had influence on while work in order to avoid major loop on fire-fighting end and same circuit The normal work of other products, by giving mono- feedback control of R8 in the trigger circuit of single-chip microcomputer or V1 while V1 normallies Signal, turns on Q2, U2 work, Q1, SCR, V2 is all ended.After major loop is powered off, fire-fighting loop connects spare electric power source for fire-fighting When, backup power source voltage by R2, R1, R3 to D1 rectifications, then can turn on Q1 through R4, R5, R6, and trigger SCR conductings, then pass through R3, C-terminal form loop to be dragged down the triggering electrode potential of V2 to turn on V2;Passageway for fire apparatus after V2 conductings forms loop, load lamp Can normal work.
As shown in Figure 3 and Figure 4, in preferred embodiment, two-wire system electronic switch also includes:Protection circuit, zero line L passes through The first end of protection circuit controlable electric current V1 two-way with first is connected.For example, as shown in figure 3, protection circuit includes fuse F1 It is serially connected between zero line L and V1 with resistance R8, fuse F1 and resistance R8.And for example, as shown in figure 4, protection circuit includes melting Disconnected device F2 and resistance R19, fuse F2 and resistance R19 are serially connected between zero line L and V1.
It is noted that with reference to shown in Fig. 3, Fig. 4 and Fig. 5, the present invention also provides a kind of fire-fighting illumination control circuit 20, The fire-fighting illumination control circuit 20 includes load lighting circuit M and above-mentioned two-wire system electronic switch, wherein, load outputs A accesses civil power zero line by loading lighting circuit M.For example, load lighting circuit include emergency light, i.e. emergency light be connected on load it is defeated Go out to hold between A and civil power zero line N, emergency light uses the product of in the market technology maturation.
To further illustrate two-wire system electronic switch of the invention and fire-fighting illumination control circuit, as shown in fig. 6, two-wire system Wiring when electronic switch is used as fire-fighting control see Fig. 6.Using when, two-wire system electronic switch of the invention can be made into Switch on wall, in corridor, (product 1, product 2, product 3 refer to the present invention to batch application for such as product 1, product 2, product 3 etc. Two-wire system electronic switch), it is corresponding, for realize fire-fighting function, product 1, product 2, product 3 etc. correspondence be connected to load power for illumination Road M1, load lighting circuit M2, load lighting circuit M3, load lighting circuit 4 etc..To realize centralized control functions, using turn Switch K1 is changed, when change-over switch K1 is electrically connected with city, major loop L termination 220VAC civil powers, two-wire system electronic switch is only realized Electronic switch basic function (electronic switch be supported on sound, sense, touch etc. signal control it is lower could trigger light after prolong When, the cyclic process extinguished again after time delay), while it is off position that fire-fighting centralized control functions are de-energized.Work as change-over switch K1 is connected with spare electric power source for fire-fighting, and fire-fighting end C connects spare electric power source for fire-fighting, while major loop L ends power off, major loop does not work;Electricity Sub switch only realizes fire-fighting centralized lighting function.
To further illustrate two-wire system electronic switch of the invention and fire-fighting illumination control circuit, as shown in fig. 7, two-wire system Wiring when electronic switch is used as centralized Control see Fig. 7.Using when, two-wire system electronic switch of the invention can be made into Switch on wall, in corridor, (product 1, product 2, product 3 refer to the present invention to batch application for such as product 1, product 2, product 3 etc. Two-wire system electronic switch), it is corresponding, for realize fire-fighting function, product 1, product 2, product 3 etc. correspondence be connected to load power for illumination Road M1, load lighting circuit M2, load lighting circuit M3, load lighting circuit 4 etc., wherein, switch K2 is as common concentration The double control switch of control.Civil power can be connect with double control switch K2 to be switched between main circuit terminal L1 and fire-fighting end C.Work as dual control When switch K2 and C-terminal are connected, it is capable of achieving to force centralized control functions (no matter the load of two-wire system electronic switch is in bright or go out State, can all be forced to light.);When change-over switch and logical L1 terminations, two-wire system electronic switch only realizes electronic switch (lower could the triggering of signal control such as be supported on sound, sense, touch of electronic switch lights rear time delay to basic function, after time delay The cyclic process extinguished again), while it is off position that centralized function is de-energized.
Understand, when being used as centralized Control such as Fig. 7, civil power can be connect in main circuit terminal L1 and fire-fighting with double control switch K Switched between the C of end.When double control switch K and C-terminal are connected, it is capable of achieving to force centralized control functions (regardless of two-wire system electronics The load of switch is, in state that is bright or going out, to be all forced to light.);When change-over switch and logical L1 terminations, two-wire system electricity Sub switch only realizes that (electronic switch such as is supported on sound, senses, touch at the lower ability of signal control for the basic function of electronic switch Rear time delay is lighted in triggering, the cyclic process extinguished again after time delay), while it is off position that centralized function is de-energized.
The advantage of the invention is that:Meet the Lighting control electricity that construction sector of China is used on skyscraper corridor Sub switch must have a regulation for being forcibly turned on control end, and (this is forcibly turned on control end and can connect spare electric power source for fire-fighting, is exactly Special fire-fighting end), it is necessary to the control end of all electronic switches and can connect together, be connected to by a total fireman's switch and disappeared Centralized Control is used on anti-stand-by power supply.Lighted by electronic cutting, it is necessary to concentrate when scene occurs fire and other abnormal conditions When closing the load lamp of control, and after total fireman's switch connection stand-by power supply (after occurring because of fire or other abnormal conditions, mains failure Or because the safety problem in view of scene deliberately cuts off civil power.The lighting lamp for fire service that stand-by power supply is provided only to corridor is used, with side Just evacuating personnel.), all illuminating lamps of this corridor can be forced to light the same time;To facilitate evacuating personnel or do it Its use.And to meet and middle this is forcibly turned on control end (special fire-fighting end) as centralized Control industry is actually used End uses;When needing the electronic switch load lamp with centralized Control end all to light, can be all centralized Control ends all Link together, make all to be lighted by the load lamp that electronic switch is controlled with a switch centralized Control, to reach centralized Control Purpose.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

1. a kind of two-wire system electronic switch, including:Disappear for connecting the zero line of civil power live wire, load outputs and for connecting The fire-fighting end of anti-stand-by power supply, it is characterised in that also include:First two-way controlable electric current, the second two-way controlable electric current, triggering electricity Road, isolation circuit and conducting feedback end;
The zero line is connected with the first end of the described first two-way controlable electric current;
The load outputs respectively with the second end of the described first two-way controlable electric current and the second two-way controlable electric current First end is connected;
The fire-fighting end is connected with the second end of the described second two-way controlable electric current;
The triggering end of the first two-way controlable electric current is used to connect the triggers circuit of major loop, with the zero line and described After load outputs access civil power, the first two-way controlable electric current is by signal triggering and conducting;
The output end of the triggers circuit is connected with the triggering end of the described second two-way controlable electric current;
The output end of the isolation circuit is connected with the input of the triggers circuit;
The conducting feedback end is connected with the input of the isolation circuit, and the conducting feedback end is used to connect the control of major loop End processed, to receive the bright light feedback signal of major loop, the bright light feedback signal is by the isolation circuit and the triggers circuit After control the described second two-way controlable electric current to end.
2. two-wire system electronic switch according to claim 1, it is characterised in that the first two-way controlable electric current is two-way Controllable silicon or connected with each other two one-way SCRs, the second two-way controlable electric current is for bidirectional triode thyristor or mutually simultaneously Two one-way SCRs for connecing.
3. two-wire system electronic switch according to claim 1, it is characterised in that the isolation circuit include isolation module and Drive module, the output end of the isolation module is connected with the input of the trigger module, the input of the isolation module Output end with the drive module is connected, and the input of the drive module is connected with the conducting feedback end;The driving Module is used for the bright light feedback signal back of the major loop that will be received to the isolation module, and the isolation module is isolated for root End the trigger module according to the bright light feedback signal of major loop, and then end the described second two-way controlable electric current.
4. two-wire system electronic switch according to claim 3, it is characterised in that the triggers circuit includes resistance R1, electricity Resistance R2, resistance R3, resistance R4, resistance R5, rectifying full bridge D1, earth terminal GND1 and unidirectional controllable silicon S CR1;Wherein, earth terminal GND1 is used to be grounded;
One end of resistance R1 is connected with the triggering end of the described first two-way controlable electric current, the other end of resistance R1 by resistance R2 with The load outputs connection;
The first end of rectifying full bridge D1 is connected between resistance R1 and resistance R2, second end of rectifying full bridge D1 and one-way SCR The anode of SCR1 is connected and is connected with the control pole of unidirectional controllable silicon S CR1 by resistance R4, and the 3rd end of rectifying full bridge D1 passes through Resistance R3 is connected with the fire-fighting end;4th end of rectifying full bridge D1 is connected with earth terminal GND1;
The negative electrode of unidirectional controllable silicon S CR1 is connected with earth terminal GND1, and the control pole of unidirectional controllable silicon S CR1 passes through resistance R5 and connects Ground terminal GND1 is connected and is connected with the output end of the isolation module.
5. two-wire system electronic switch according to claim 4, it is characterised in that the isolation module includes photoelectrical coupler U2, the drive module includes triode Q1, resistance R6, resistance R7, earth terminal GND2 and power supply VCC1;Wherein, earth terminal GND2 is used to make the direct-current power supply earthing of major loop, and earth terminal GND1 isolate with earth terminal GND2;
First pin of photoelectrical coupler U2 connects power supply VCC1, the second pin connection three of photoelectrical coupler U2 by resistance R6 The colelctor electrode of pole pipe Q1, the 3rd pin of photoelectrical coupler U2 is connected with earth terminal GND1, the 4th pin of photoelectrical coupler U2 Control pole with unidirectional controllable silicon S CR1 is connected;
The base stage of triode Q1 is connected by resistance R7 with the conducting feedback end, emitter stage and the earth terminal GND2 of triode Q1 Connection.
6. two-wire system electronic switch according to claim 3, it is characterised in that the triggers circuit includes resistance R11, electricity Resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, rectifying full bridge D11, triode Q11, earth terminal GND11 and unidirectional Controllable silicon SCR 11;Wherein, earth terminal GND11 is used to be grounded;
One end of resistance R11 is connected with the triggering end of the described first two-way controlable electric current, and the other end of resistance R11 passes through resistance R12 is connected with the load outputs;
The first end of rectifying full bridge D11 is connected between resistance R11 and resistance R12, second end of rectifying full bridge D11 with unidirectionally may be used The anode connection of control silicon SCR11, the 3rd end of rectifying full bridge D11 is connected by resistance R13 with the fire-fighting end;Rectifying full bridge 4th end of D11 is connected with earth terminal GND11;
The negative electrode of unidirectional controllable silicon S CR11 is connected with earth terminal GND11, and the control pole of unidirectional controllable silicon S CR11 passes through resistance R16 It is connected with earth terminal GND11;
The colelctor electrode of triode Q11 is connected and by resistance R15 and three by resistance R14 with the anode of unidirectional controllable silicon S CR11 The base stage connection of pole pipe Q11, the emitter stage of triode Q11 is connected with the control pole of unidirectional controllable silicon S CR11;Triode Q11's Base stage is connected with the output end of the isolation module.
7. two-wire system electronic switch according to claim 6, it is characterised in that the isolation module includes photoelectrical coupler U12, the drive module includes triode Q12, resistance R17, resistance R18, earth terminal GND12 and power supply VCC2;Wherein, connect Ground terminal GND12 is used to be grounded, and earth terminal GND11 isolates with earth terminal GND12;
First pin of photoelectrical coupler U12 connects power supply VCC2 by resistance R17, and the second pin of photoelectrical coupler U12 connects The colelctor electrode of triode Q12 is connect, the 3rd pin of photoelectrical coupler U12 is connected with earth terminal GND11, photoelectrical coupler U12's 4th pin is connected with the base stage of triode Q11;
The base stage of triode Q12 is connected by resistance R18 with the conducting feedback end, the emitter stage and earth terminal of triode Q12 GND12 is connected.
8. two-wire system electronic switch according to any one of claim 1 to 7, it is characterised in that the two-wire system electronics Switch also includes:Protection circuit, the first end that the zero line passes through the protection circuit and the described first two-way controlable electric current Connection.
9. a kind of fire-fighting illumination control circuit, it is characterised in that including load lighting circuit and as appointed in claim 1 to 8 Two-wire system electronic switch described in one, wherein, the load outputs access civil power zero line by the load lighting circuit.
10. fire-fighting illumination control circuit according to claim 9, it is characterised in that the load lighting circuit includes should Anxious lamp.
CN201710122780.0A 2017-02-18 2017-02-18 Two-wire electronic switch and fire-fighting lighting control circuit Active CN106849927B8 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010139190A1 (en) * 2009-06-03 2010-12-09 Guo Qiaoshi Surge-free arc extinguishing device
JP2012198660A (en) * 2011-03-18 2012-10-18 Panasonic Corp Load control device
CN202759427U (en) * 2012-06-20 2013-02-27 美的集团股份有限公司 Two-wire electronic switch with fire fighting function
CN103957636A (en) * 2014-04-28 2014-07-30 Tcl-罗格朗国际电工(惠州)有限公司 Two-wire dimming circuit
CN204425305U (en) * 2015-02-11 2015-06-24 彭云 Two-wire system electronic switch
CN204697345U (en) * 2015-06-02 2015-10-07 宁波公牛电器有限公司 A kind of centralized control electronic switching circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010139190A1 (en) * 2009-06-03 2010-12-09 Guo Qiaoshi Surge-free arc extinguishing device
JP2012198660A (en) * 2011-03-18 2012-10-18 Panasonic Corp Load control device
CN202759427U (en) * 2012-06-20 2013-02-27 美的集团股份有限公司 Two-wire electronic switch with fire fighting function
CN103957636A (en) * 2014-04-28 2014-07-30 Tcl-罗格朗国际电工(惠州)有限公司 Two-wire dimming circuit
CN204425305U (en) * 2015-02-11 2015-06-24 彭云 Two-wire system electronic switch
CN204697345U (en) * 2015-06-02 2015-10-07 宁波公牛电器有限公司 A kind of centralized control electronic switching circuit

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Correction item: Patentee|Address|Patent agency|Patent Agent

Correct: Wang Lixin|516007 Community, No. 14 He Nan An He Di Road, Huicheng District, Huizhou City, Guangdong Province|Beijing Zhonghe Chengcheng Intellectual Property Agency Co., Ltd. 11246|Ma Xiaojing

False: Guangdong Yushun Electrical Appliance Co., Ltd.|528000, No. 42 Zhongcheng Road, Xincheng Community, Leliu Street, Shunde District, Foshan City, Guangdong Province (Residence Declaration)|Hangzhou Huaqi Zhicheng Intellectual Property Agency (Special General Partnership) 33581|Sheng Chenglong

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Correct: Wang Lixin|516007 Community, No. 14 He Nan An He Di Road, Huicheng District, Huizhou City, Guangdong Province|Beijing Zhonghe Chengcheng Intellectual Property Agency Co., Ltd. 11246|Ma Xiaojing

False: Guangdong Yushun Electrical Appliance Co., Ltd.|528000, No. 42 Zhongcheng Road, Xincheng Community, Leliu Street, Shunde District, Foshan City, Guangdong Province (Residence Declaration)|Hangzhou Huaqi Zhicheng Intellectual Property Agency (Special General Partnership) 33581|Sheng Chenglong

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Volume: 40

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